Relay.



PATENT OFFICE. Q

CHARLES E. SCRIBNER, OF JERICHO, VERMONTQASSIGNOR TOWESTERN ELECTRIC COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLI NOIS.

Specification of Idetters IPatent.

Patented April 16, 1907.

' Application filed March 31.1906. Serial No. 309.060-

m whom it "my concern:

Be it known that I, CHARLES I Scmnnnn, a citizen of the United States, residing. at Jericho, in the county of Uhittenden and State of Vermont, have invented a certain new and useful Improvement in Relays, of which the l'ollowint'is a full, clear, concise, and exact description.

My invention relates to a relay, and its objeot to provide a construction in which the armature is delicately mounted so as to he accurately responsive to the energizat-ion or denergizatitm of the magnet.

My invention contemplates a structure in' which there is a double-lniife-edgo arran ement of the arnntture and its seat, there l y reducing the friction 01' the parts to a minimum. This feature is important in View of the trouble which has been encountered in relays having light armatures, owing to the failure of said armatures to be restored by the slight force which gravity exerts.

A further feature of my invention consists in thenmwnrd inclination from the seatingpoint of the pole-piece which forms the seating memhcr. With this construction, in case the armature is slightly displaced from its seat it is restored into position lay the action of gravity. Y o

1 will describe. my invention more particu larly by reference to the accompanying drawings, in whiel Figure 1 isa side elevation of a relay embodying my invention. longitudinal section thereof. Fig. I; is a se tion on line 3 3 of Fig. l, and Fig. t is a detail perspective view of the armature of the relay.

Similar letters of reference refer to similar parts in all the figures of the drawings.

The particular tot-m ol' stop-screyv shown is no part ol invent ion.

The arnnttnrc is seated upon the polc- Fig. 2 is a central piece I), the lugs a (1 straddling the tenure 0. The lower walls 71* of the grooves b iLIGiUIIfB- edged, the armature and polepiece thus having each a knife-edge hearing against the other.

The armature extends obliquely upward for a short distance from its seating edge and then extends vertically. By this construction the line of center of gravity is in front of the seating-point of the armature, causing the same to retract when the magnet is deenergized. v

In case the armaturebecomes slightly uns'eatied the inclined tongue 1) causes the same to bereturned by gravity to its seating pOSition.

Having thus described my invention, I elaim 1. I11 a relay, net, of an armature having a knife-edge, a; pole-piece forming a seat for said armature, said pole-piece being inclined upwardly from the seatingoint of the armature.

2. In a re ay, the combination with a mag net, of an armature having a knife-edge, a

pole-piece forming a seat for said armature,

said pole-piece being inclined obliquely up ward from the seating-point of the arn'tature.

3. In a relay, the combination with a magnet, of an armature and a pole-piece, each having" a lrnit'e-edge bearing against the other.

4. In a relay, the combination with a magnet. of an armature, a pole-piece forming a' seat therefor, said armature and pole-pieoe each having a l-znife-edge bearing against the other, and said polo-piece,- being inclined upwardly from 5. In a relay, the c'oinbinatitin with a mitgnet. ol an arnn'tture, a pole-piece forming 'a seat therefor, said armature and pole-piece each having a knifeedge bearing against the other, and means for retaining the arnmture in its seated osition. r

(i. ln a re ay, a nmguet, an armature, a pole-piece forming a tonguo anthgroovo seat for the :tiI1HtilllO,. said pole-piece and armature each having a knife-edge hearing against the other.

1'. In a relay, a magnet, an armature, a pole-piece forming a toneue=and-groove seat for the arimiture. snitl pole-piece and armathe combination with a magthe seating-point of the amt) ture. I y

the other, and said, pole-piece beinginvfinod upwardly Tom the swting-point O'f the arm 21- ture.

for the mmn tum, said pole-piece and arms-Q1 hire each havin a knife-ed s bearing wminst the other, and each extending obliquely upward from sand bearmgs.

in w1tn0ss whereof I hereunto 'SllbSCllbG 5 my name this 29th day of March, A. D. 1906. 8. m a relay, a magnet, an armature, a poze-plece .i'u'mnng a tongue-and-groove seat CHARLES E. SCRIBYER. Witnesses:

ROY T. ALLOWAY, Ev F. BEAUBIEN. 

